JSB Sampel kit

Head size can make a difference in some barrels..check Kodiaks out for comparison....I'm getting ready to test some..

JSBH = .173".......Kodiak = .178"....
 
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Crazyhorse; How did that test go JSBh v Kodiak .173 v .178 That's a big spread almost .13mm. What Gun/barrel are You useing thank's.....Franky
 
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